Help with SM-G7102T

Hello People :D , my name is guilherme i am from brazil .. so sorry for the bad english :P , i need some help with SM-G7102T (Grand Duos 2 ) , the principal bad thing is because this model has launched only in brazil. The next Bad thins ( really really bad :p) is the stock firmware for this model is 4.3 jellyBean , soooo i want play pokemon go and update the firmware , but is too hard find a ROM that works fine in my phone , basically i need help for this things >

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1 - Port some SM-G7102 4.4.4 --- 6.0 rom for SM-G7102T |
2 - Build a new Rom for SM-G7102T |
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obs: I am programmer and i am expert with linux , but i don't have the best experience with ROM port or Rom Modding , i am here because i try to port ROMs and i get lost, so i really really need help :eek:


---- Useful Links
SM-G7102T Stock Rom > www&sammobile&com/firmwares/download/36081/G7102TVJUANI1_G7102TZTOANI1_ZTO/
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SM-G7102T Android Device Inventory > www&androiddevice&info/submission/29786/show
> & == . <
(i can't post links :( )




Thanks for the attention.